temps
I didn't read every word of every response, so if this has been touched on, sorry.
What about your temps, It may not be warm enough for your snake to digest properly.
Turn off the UTH?
UTH quit working?
I take it by this latest post that it regurgitated todays meal also?
This could be a serious problem.
Check the temps, make sure they are high enough and this time, I would wait a full two weeks before feeding again.
When you do feed again go with a very small pinkie. very small.
If it holds this down wait 10 days for the next feeding and go with just a slightly larger pinkie.
If it holds this down go 7 days and feed a medium pinkie.
If it holds down all three of these meals I would continue it on a normal 7 day feeding schedule, upgrading size of prey as needed.